Feedback after first prototype

After the first prototype, we run a small test in our corridor. The test process like this:
1. explain our idea briefly
2. show the prototype and ask them some questions. For example, a)if they can tell which panel control which stove from this prototype. b) if they can switch on a right stove. c)if they know how to stop it. d)if they know how to set the timer.
3. ask some advices on this interface.

Almost all of they can give right answer to the questions on step two, So this means the interface not so hard to use. But they complain that there should be a dynamic way or amination to show the interaction process, not just static display but useing sound or virbration to deliver the information to use. We think those suggestion are quite good and plan to make a improvement later.